Oven



M. FROEHLICH.

OVEN. APPLICATIQN FILED JULYAI. |919.

Patented Aug. 15, 1922.

04 SH EETS-SHEET l.

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' 5. if l5 QQ?- J4 a6 M. FROEHLICH.

v OVEN. APPLfcATloN FILED JULY 17.1919.

Patented Aug. 15, 1922.

4 SHEETS-SHEET Z.

NLFROEHLICH.

OVEN. APPLICATION FILED JULY I7, i919.

1,42,@59 Patented Aug. 15, 1922.

4 SHEETS- SHEET 3.

M. FROEHLICH.

OVEN. APPLICATION' FILED JULY 17, 1919.

1,426,059, Patented Aug.I 15, 1922.

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MORRIS FROEHLCI-I, OF CHICAGO, ILLINOIS.

OVEN.

inattesa.

` Application led July 17,

To all whom it may concern.'

Be it known that l, Monnis FnonHLrcrr, a V

citizen of the United States, residing at Chicago, in the. countyv of kCook and State of tractive and suitable for use wherever found applicable. It has among its further objects the production of an oven which may be economically manufactured, shipped, or transported and set up. Many other objects and advantages of the construction herein shown and described` will be obvious to those skilled in the art from the disclosures herein given.

To this end my invent-ion consists in the novel construction, arrangement and combination of parts herein shown and described, and more particularly pointed out in the claims.

In the drawings, wherein like reference characters indicate like or corresponding parts,

Fig. l is a side elevation of my improved oven; i

Fig. '2 is a sectional view through the same;

Fig. 3 is a view'in elevation of one end;

Fig. l is a similar view oit the other end; Y

Fig. 5 is a sectional view taken substantially on line 5-5 of Fig. 2;

Fig. 6 is a vview in elevation of the driving mechanism, the casing part i7 removed;

Fig. 7 is a view in elevation of a portion of one of the side section trame members;

Fig. 8 is a sectional view of a portion of two sections enlarged to more clearly show the construction;

Fig. 9 is a view showing in perspective the portions of the sectional frame disassembled to show the construction;

Fig. l0 is an enlarged view of a portion of the driving mechanism.

Fig. 11 is a sectional view taken substan-` tially on line Ztl-ll of Fig. 10; and

Fig. l2 is a perspective view illustrating the construction of the sections.

Specification of Letters Patent.

Patented Aue'. 15, i922.

1919. serial No. 311,466. V

Referring to the drawings, landv 2 repre-v sent end frames which are preferably Iormed withthe leg portions 3 and reinforced by the ribs et, so that the same may be made ot sub` stantially light weight;4 As most clearly shown in Fig. 2, each end frame is provided with a flange 5 extending about the same and arranged to provide a seat for the side walls which are made in sections. l'nthe construction shown provide a top section 6, door sections 7 and 8, and other sections 9, l0, l1 andl l2,fwhich are constructed as hereafter described and's'uitably detachably secured to the end frames.

The, sections vare substantially similar,` and therefore a description of one section will suHlce for all, itbeing understood that the i various sections lmay vary in width or contour as found necessary or desirable. Referring particularly to Figs. 7, 8, 9 and each section consists of the end portions `or parts l5 which are preferably-ot the desired size and shape and made of suitable material.

As shown, each part is provided with a lug i 16 adjacent each end to which are secured theside irons 17%17, which with the end parts make up the section trame. AThe angles 17 may be secured to the lugs 16 bythe rivets`l8 or equivalent means for the purpose. Extending over the trames 'are the cover plates 2l and ,22 of sheet metal, these being secured to the end parts 15 aswell as to the angleirons 17 if desired by means of suit- 'i 8, one section at one edgeis formed with the l.

cover plates 2l-22 extended up vso as to` overlap thev exterior of the adjacent section, while the adjacent'section is formed with its adjacent edge provided with an overlapping portion that will overlap on the-"inside,l it being understood that it is immaterial which section-laps on the outside and which on the inside, one v being preferably provided with the outside of the lap and the. other with the inside. '1l end walls, as most clearly shown in Fig. 2, are provided with the plates 14 between which and the end frame also be arranged asbestos or other non-heat-conducting material. 1@ne or both of the sections 7 and 8, as shown both, may be hinged as at 23 so that the oven may be opened up to permit the placing of the articles to be baked within the oven or removing the same, or to permit the inspection during the baking. 1f desired, handles 24 or the equivalent may be placed as shown. 1 have shown one door section provided with the transparent panes 80, so that inspection may be made without opening the door. The several sections are secured in place on ange 5 by the bolts or screws 20 passing through the end frames 1 and 2 and engaging the frame parts 15.

1t will be understoodthat the members designated as 15 and 17, when fastened together in any appropriate manner constitute the side wall frames to which the space plates are attached receiving the insulating material.

1n assembling the parts of this device, the end walls or frames should be constructed as shown, as well as the various sections of the device. The side wall sections are secured to the end frame in the manner described. 'lhe shaft 25 may then be inserted through one end, and the parts 26 mounted thereon, after which the shaft may be projected through the other end and securely fastened. The shelf members are preferably inserted through the door openings, and attached to their proper supports, after which the hinged door openings are closed.

Arranged within the Oven and supported by the end frames is a rotatable shaft 25, which carries the shelf carrying members 26 secured thereto. Each-member 26 is provided with pins 27 from which are suspended the frame parts 28 carrying the bars 29, forming substantially shelves upon which the articles to be baked may be carried. The shaft 25 may be driven in any suitable manner.- As shown, it is provided with a sprocket wheel 31, this being driven by a sprocket chain or the equivalent from a sprocket wheel or pulley 32. As shown, my driving mechanism is` preferably enclosed by the housing` L7 and a housing or casing S35-36. r1`he sprocket 32 is mounted on a shaft 33 which carries a gear 34 meshing with the gear 37 on the shaft 38. Shaft 38 is driven by a worm wheel 89 meshing with the worm i0 on shaft 11. As shown, shaft i1 is provided with a gear i-2 meshing with the gear a3 on the shaft 44.- of the motor 45. `Motor 45 is carried from a bracket 4-6 secured to one of the legs 3 of the frame 1.

As will be seen by referring to Fig. 5, there is a space between the sections 11 and 12 at the bottom of the oven. Adjacent this space is a gas pipe 19 from which extend the pipes 50 carrying burners 51 of suitable design. These burners project to adjacent the interior of the oven. ns most clearly shown in Figs. 2 and 5, I provide plates 52 at each side of the burners so that there is a space between the plates for the air to circulate and enter the oven with a space at the outside in which the cooled air or heat may pass. 1f desired a vent pipe 54 may be propower may be turned off if desired. Ordi-l narily, the material may be placed on the carriers or removed while the carriers are turning, as the same normally move slowly. At the desired time the contents of the oven are removed.

1t will be particularly noted that with the oven as constructed Jche same may be set up or disassembled in a comparatively short time, so that it may be easily transported or taken through narrow spaces. 1n a baker it may be placed in the front window or at any desired point. Owing to the peculiar construction of the sections, substantially standard form angles 17 may be employed, affording a very rigid and strong construction, as well as one that can be economically manufactured. Owing to the arrangement at the oints, as shown in Fig. 8, the same may be constructed so that considerable expansion or contraction may take place without injury to the oven.

,Having thus described my invention, it is obvious that various immaterial modifications may be made in the same without departing from the spirit of my invention; hence 1 do not wish to'be understood as limiting myself to the exact form, construction, arrangement and combination of parts herein shown and described, or uses inentioned.

What 1 claim as new and desire to secure by Letters Patent is:

1. 1n an oven of the kind described and in combination, a pair of end frames each having an inwardly extending flange, a plurality of side wall sections arranged on said flange, each section comprising a frame consisting of end portions provided with lugs adjacent eac-h end and bars secured to said lugs and connecting said end portions, inner and outer cover sheets for said section frames, heat insulating material arranged between said cover sheets, and means for de` tachably securing said sections to the end frames.

Y 2. In an oven of the kind described and in combination, a pair of end frames each having an inwardly extending flange, a. plurality of side wall sections arranged on said flanges, each section comprising a frame consisting of end portions provided with lugs adjacent each end and bars secured to said lugs and connecting said end portions, inner and outer coverI sheets for said section frames, heat insulating material arranged between said cover sheets, means for detachably securing said sections to the end frames, movable shelves in the interior of the oven, and heating means arranged in the oven ad# jacent the bottom thereof.

3. In an oven of the kind described and in combination, a casing consisting of a plurality of end frames and side wall sections connecting the end framesv and carried thereby, said sections each consisting of a frame consisting of suitably formed end parts yand angle irons connecting said end parts and secured thereto, sheet metal cover sheets arranged on the inner and outer sides of said frame, said cover sheets projecting beyond the frame, whereby when the sections are assembled, the cover sheets of one section will overlap the adjacent section on the outer side of the casing and the cover sheet of said adjacent section will overlap the first mentioned section on the inner side of the casing, means for heating the contents of the casing, a rotatable reel arranged within the casing, and means for driving the same.

4:. In an oven of the kind described, and in combination, a pair. of end frames' each having an inwardly extending flange of angle iron formation, a plurality of side frames mounted upon said flange, each side `frame section comprising a frame member having a lug projecting therefrom at each end and bars mounted over and secured' `to said lug to connect the end portions, cover sheets for said sections, and insulating material disposed between said cover sheets.

5. In an oven ofthelrind describe-d, and in combination, a pair of end frames each having an inwardly extending flange of angle iron formation, a plurality of said frames mounted upon said flange, each side frame section comprising a frame member having a lug projecting therefrom at each end and bars mounted overl and secured to said lug to connect the end portions, cover sheets for said sections,land insulating material disposed between said cover sheets,

the lugs of each frame and the connecting bars comprising angle irons.

In testimony whereof, I have hereunto signed my name in the presence of two subscribing witnesses.

MORRIS -FROEI-ILICH.

YWitnesses:

ROY W. I-IILL, CHARLES I. COBB. 

